OpenTwo archives, queried live.
Every record below comes from The Met or Smithsonian Open Access and was filtered on that archive’s own rights field before it reached this page. 24 shown for “Square with Holy Warriors Spearing a Serpent” — 64 records examined, 12 dropped by the rights gate.
Archives queried 2026-09-03 23:19 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Square with Holy Warriors Spearing a Serpent
Artist not stated in the record · 7th–8th century
Icon
Ethiopian Orthodox · 17th century
Serpent labret with articulated tongue
Mexica artist(s) · 1325–1521 CE
Lekythos
Artist not stated in the record · early 5th century B.C.
Oedipus and the Sphinx
Gustave Moreau · 1864
The Roman Consul Attilius Regulus Fighting a Giant African Serpent
Jan van der Straet, called Stradanus, Flemish, 1523–1605 · 1596 or before
The Immaculate Conception
Guido Reni · 1627
Ritual wine container (fangyi) with masks(taotie), serpents, and birds
Artist not stated in the record · ca. 1100 BCE
Figure with conical headdress and shield
Maya artist(s) · 600–800 CE
Sitting Holy, Sioux Indian
Kasebier, Gertrude · ca 1898
Helmet of the Corinthian Type and Pair of Greaves
Artist not stated in the record · early 5th century BCE
Sitting Holy, Sioux Indian
Kasebier, Gertrude · ca 1898
Warrior Bottle
Artist not stated in the record · 4th–7th century
Design for a Trophy
Artist not stated in the record · 1775–1800
Column
Maya artist(s) · 800–900 CE
Case
Artist not stated in the record · early 17th century
Terracotta krater
Workshop of New York MMA 34.11.2 · ca. 775 BCE
Design for the Rear of a Carriage with Valor Victorious over Vice and Arrogance
Ciro Ferri, Italian, 1634 - 1689 · late 17th century
Landscape with Moses and the Burning Bush
Domenichino (Domenico Zampieri) · 1610–16
Has No Horses, Sioux Indian, with spear and feathers
Kasebier, Gertrude · ca 1898
Disk with Figure
Artist not stated in the record · 6th–7th century
Elevation of a Reliquary Cross
Pietro Belli, Italian, 1780–1828 · 1815–40
Boar Spear with Double Barrel Wheellock Pistol
Artist not stated in the record · late 16th century
Title Page
François-Thomas Mondon, French, 1709 – 1755 · 1736
Where these records came from.
Two archives are wired, and only two. Each one is filtered on its own rights field — never on a title match, and never on the presence of an image file.
- The Met Collection API (Open Access)Rights field:
isPublicDomain. 25 matched · 24 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.12 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1873387 matched · 40 examined · 12 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.12 shown
These figures describe the pass run at 2026-09-03 23:19 UTC, during this request. A completed pass is kept for 24 hours and replayed for an identical search, which is what keeps repeated queries inside Smithsonian’s 30-requests-per-hour allowance. A pass in which either archive failed to answer is never kept — an outage must not be replayed as though it were a finding about the catalogue.
Wikimedia Commons and the Library of Congress are deliberately not wired. Wikimedia was confirmed, on a live query, to return CC-BY material inside the same result set as genuine public domain works, and filtering it safely has not been designed yet. loc.gov was blocked by bot detection during the source evaluation, so its rights vocabulary has never been observed — and nothing here is built on a field nobody has read.
An image file is a rights claim. It never travels without its field.